Utilisation and Reliability of High Power Proton Accelerators

Workshop Proceedings, Daejeon, Republic of Korea, 16-19 May 2004

image of Utilisation and Reliability of High Power Proton Accelerators

Accelerator-driven systems (ADS) are being considered for their potential use in the transmutation of radioactive waste. The performance of such hybrid nuclear systems depends to a large extent on the specification and reliability of high power accelerators, as well as the integration of the accelerator with spallation targets and sub-critical systems. At present, much R&D work is still required in order to demonstrate the desired capability of the system as a whole.

Accelerator scientists and reactor physicists from around the world gathered at an NEA workshop to discuss issues of common interest and to present the most recent achievements in their research. Discussions focused on accelerator reliability; target, window and coolant technology; sub-critical system design and ADS simulations; safety and control of ADS; and ADS experiments and test facilities. These proceedings contain the technical papers presented at the workshop as well as summaries of the working group discussions held. They will be of particular interest to scientists working on ADS development as well as on radioactive waste management issues in general.



ADS Accelerator Reliability Activities in Europe

Nuclear Energy Agency

In this work we report the activities performed in Europe to assess the reliability characteristics for an ADS-class accelerator system. These activities are mainly carried in the context of Working Package 3 (“Accelerator”) of the EC programme PDS-XADS (funded by the Fifth Framework Programme, under contract FIKW-CT-2001-00179) aimed at the design of a highly reliable accelerator for an experimental ADS. We review the reliability-oriented guidelines followed to select the reference accelerator design, and present the methodologies used for highlighting the critical areas needing further work and R&D activities in future programmes. Furthermore, we describe the synergies with ongoing high-energy physics programmes aimed at the availability assessment of complex accelerator systems, which may facilitate the compilation of a much-needed reliability database of accelerator components. A rough exploratory “parts count” reliability analysis is then presented and briefly discussed to assess the needed work on the path to obtain more accurate reliability/availability predictions of the ADS accelerator operation.


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